401240312122 has 32 divisors (see below), whose sum is σ = 651419168400. Its totient is φ = 184258257408.

The previous prime is 401240312119. The next prime is 401240312171. The reversal of 401240312122 is 221213042104.

It can be written as a sum of positive squares in 8 ways, for example, as 68933027601 + 332307284521 = 262551^2 + 576461^2 .

It is a junction number, because it is equal to n+sod(n) for n = 401240312093 and 401240312102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4088128 + ... + 4185124.

Almost surely, 2^401240312122 is an apocalyptic number.

401240312122 is a deficient number, since it is larger than the sum of its proper divisors (250178856278).

401240312122 is a wasteful number, since it uses less digits than its factorization.

401240312122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97810.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 401240312122 its reverse (221213042104), we get a palindrome (622453354226).

The spelling of 401240312122 in words is "four hundred one billion, two hundred forty million, three hundred twelve thousand, one hundred twenty-two".